2001200102111 has 16 divisors (see below), whose sum is σ = 2324940384768. Its totient is φ = 1686932200800.

The previous prime is 2001200102107. The next prime is 2001200102123. The reversal of 2001200102111 is 1112010021002.

It is not a de Polignac number, because 2001200102111 - 2² = 2001200102107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001200102092 and 2001200102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001200102311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2410646 + ... + 3132668.

It is an arithmetic number, because the mean of its divisors is an integer number (145308774048).

Almost surely, 2^{2001200102111} is an apocalyptic number.

2001200102111 is a deficient number, since it is larger than the sum of its proper divisors (323740282657).

2001200102111 is an equidigital number, since it uses as much as digits as its factorization.

2001200102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728582.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001200102111 its reverse (1112010021002), we get a palindrome (3113210123113).

The spelling of 2001200102111 in words is "two trillion, one billion, two hundred million, one hundred two thousand, one hundred eleven".